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Python Python Collections (2016, retired 2019) Slices Slice Functions

Posted by Cross Ender
Cross Ender
9,567 Points

I simplicitly can't figure this out.

.

slices.py 
def first_4(itt):
    return itt[:4]

def first_and_last_4(itt):
    return first_4(itt) + itt[-4:]

def odds(itt):
    return itt[::2]

2 Answers

james south
seal-mask
.a{fill-rule:evenodd;}techdegree seal-36
james south
Front End Web Development Techdegree Graduate 33,271 Points
james south
.a{fill-rule:evenodd;}techdegree seal-36
james south
Front End Web Development Techdegree Graduate 33,271 Points

remember that the first index is 0 which is even, and that it is also the default if you don't put a starting index. when you got the first four, you sliced with [:4] to get indices 0,1,2,3.

Unsubscribed User
Unsubscribed User
16,600 Points
Unsubscribed User
Unsubscribed User
16,600 Points

You need to set a starting index of 1 to capture the odds

def odds(itt):
    return itt[1::2]